Solid Particle Erosion of Heat Treated TNB-V4 at Ambient and Elevated Temperatures
Solid particle erosion has been identified as a critical wear phenomenon which takes place during operation of aeroengines in dusty environment. The present work discusses the erosion behavior of Ti-44.5Al-6.25Nb-0.8Mo-0.1B alloy (TNB-V4) which finds its application in low pressure gas turbines and can be used for high pressure compressors too. Prior to the erosion tests, the alloy was heat treated to improve the mechanical properties. Afterwards, specimens were eroded at impact angles of 30° and 90° at room and high temperatures (100 °C-400 °C). Volume loss and erosion behavior are studied through gravimetric analysis, whereas erosion mechanisms are characterized through scanning electron microscopy. The results indicate a clear difference in the erosion mechanism for different impact angles. The influence of the test temperature on the erosion behavior of the alloy is also discussed in the present contribution.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1124497Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1121
 Tabakoff, W., High temperature erosion resistance of coatings use in gas turbine engines. Surface and coatings technology, 1992(52): p. 65-79.
 Hamed, A., W. Tabakoff, and R. Wenglarz, Erosion and deposition in turbomachinery. Journal of Propulsion and Power, 2006. 22(2): p. 350-360.
 Walt, J.P.v.d. and A. Nurick, Erosion of dust-filtered helicopter turbine engines, Part 1: Basic theoritical considerations Journal of Aircraft, 1995. 32(1): p. 106-111.
 Tabakoff, W., Protectection of coated superalloys from erosion in turbomachinery and other systems exposed to particulate flows. Wear, 1999. 233-238(1999): p. 200-208.
 Finnie, I. and D.H. McFadden, Velocity dependence of the erosion of ductile metals by solid particles at low angles of incidence Wear, 1978. 48: p. 181-190.
 Hutchings, I.M. Some comments on the theoretical treatment of erosive particle impacts. in 5th International Conference on Erosion by Solid and Liquid. 1979. Cambridge University, England.
 Hutchings, I.M., Mechanism of the erosion of metals by solid particles, in Erosion: Prevention and Useful Applications, W.F. Edler, Editor. 1979. p. 59-76.
 Hutchings, I.M., A model for the erosion of metals by spherical particles at normal incidence. Wear, 1980. 70: p. 269-281.
 Foley, T. and A. Levy, Erosion of heat-treated steels. Wear, 1983. 91(1): p. 45-64.
 Shewmon, P. and G. Sundararajan, The erosion of metals. Annual Review of Materials Science, 1983. 13: p. 301-318.
 Kothari, K., R. Radhakrishnan, and N.M. Wereley, Advances in gamma titanium aluminides and their manufacturing techniques. Progress in Aerospace Sciences, 2012. 55: p. 1-16.
 Clemens, H., Intermetallic Materials for Automotive and Aero-engine Applications. BHM Berg- und Hüttenmännische Monatshefte, 2008. 153(9): p. 337-341.
 Chandley, D., Use of gamma titanium aluminide for automotive engine valves. 2000, Metal Casting Technology: Italy
 Bartolotta, P.A. and D.L. Krause, Titanium Aluminium Applications in the High Speed Civil Transport. 1999, NASA: USA.
 Bolz, S., et al., Microstructure and mechanical properties of a forged β-solidifying γ TiAl alloy in different heat treatment conditions. Intermetallics, 2015. 58: p. 71-83.
 Neilson, J.H. and A. Gilchrist, Erosion by a stream of solid particles. Wear, 1967. II: p. 111-122.
 Bitter, J.G.A., A study of erosion phenomena (Part II). Wear, 1962(6): p. 169-190.
 Finnie, I., Wolak, and Kabil, Erosion of surfaces by solid particles. Journal of materials, 1967. 2(3): p. 682-700.
 Schloffer, M., et al., Microstructure development and hardness of a powder metallurgical multi phase γ-TiAl based alloy. Intermetallics, 2012. 22: p. 231-240.
 Appel, F. and R. Wagner, Microstructure and deformation of two-phase γ-titanium aluminides. Materials Science and Engineering: R: Reports, 1998. 22(5): p. 187-268.
 Yamaguchi, M., H. Inui, and K. Ito, High-temperature structural intermetallics. Acta Materialia, 2000. 48(1): p. 307-322.
 Yamaguchi, M. and Y. Umakoshi, The deformation behaviour of intermetallic superlattice compounds. Progress in Materials Science, 1990. 34(1): p. 1-148.
 Kameyama, Y. and J. Komotori, Effect of micro ploughing during fine particle peening process on the microstructure of metallic materials. Journal of Materials Processing Technology, 2009. 209(20): p. 6146-6155.
 Finnie, I., Erosion of surfaces by solid paricles. Wear, 1960. 3: p. 253-258.
 Kameyama, Y. and J. Komotori, Tribological properties of structural steel modified by fine particle bombardment (FPB) and diamond-like carbon hybrid surface treatment. Wear, 2007. 263(7–12): p. 1354-1363.
 Howard, R.L., The erosion of titanium aluminide intermetallic alloys, in Department of Materials Engineering. 1995, University of Cape Town.
 Levin, B.F., et al., Modeling solid-particle erosion of ductile alloys. Metallurgical and Materials Transactions A, 1999. 30(7): p. 1763-1774.
 Terlinde, G., T. Witulski, and G. Fischer, Schmieden von Titan, in Titan und Titanlegierungen. 2007, Wiley-VCH Verlag GmbH & Co. KGaA. p. 303-320.